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ES2104247T3 - GOVERNABLE HYDROSTATIC DRIVE, PREFERABLY DRIVE A CRANE. - Google Patents

GOVERNABLE HYDROSTATIC DRIVE, PREFERABLY DRIVE A CRANE.

Info

Publication number
ES2104247T3
ES2104247T3 ES94114975T ES94114975T ES2104247T3 ES 2104247 T3 ES2104247 T3 ES 2104247T3 ES 94114975 T ES94114975 T ES 94114975T ES 94114975 T ES94114975 T ES 94114975T ES 2104247 T3 ES2104247 T3 ES 2104247T3
Authority
ES
Spain
Prior art keywords
drive
crane
motor
governable
hydraulic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES94114975T
Other languages
Spanish (es)
Inventor
Horst Dipl-Ing Zerza
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebherr Werk Biberach GmbH
Original Assignee
Liebherr Werk Biberach GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6507578&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2104247(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Liebherr Werk Biberach GmbH filed Critical Liebherr Werk Biberach GmbH
Application granted granted Critical
Publication of ES2104247T3 publication Critical patent/ES2104247T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/23—Circuits for controlling the lowering of the load
    • B66C13/26—Circuits for controlling the lowering of the load by ac motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

UN ACCIONAMIENTO HIDROSTATICO CONTROLABLE, CON PREFERENCIA UN ACCIONAMIENTO DE GRUA, SE COMPONE DE UNA BOMBA HIDRAULICA ACCIONADA POR MEDIO DE UN MOTOR (4) ASINCRONO CON UN CURSOR DE CIERRE CORTO, QUE EN UN CIRCUITO CERRADO ALIMENTA UN MOTOR HIDRAULICO O UN CILINDRO HIDRAULICO. PARA PODER CONTROLAR LA VELOCIDAD DEL GIRO DEL MOTOR HIDRAULICO O LA VELOCIDAD DE MOVIMIENTO DEL EMBOLO DEL CILINDRO HIDRAULICO DE FORMA SENCILLA EN UN EQUIPAMIENTO MECANICA SIMPLIFICADO, EL MOTOR (4) ASINCRONO ESTA CONTROLADO POR UN CONVERTIDOR (5) DE FRECUENCIA CONTROLABLE.A CONTROLLABLE HYDROSTATIC DRIVE, PREFERRED A CRANE DRIVE, IS COMPOSED OF A HYDRAULIC PUMP DRIVEN BY MEANS OF A MOTOR (4) ASYNCHRONOUS WITH A SHORT CLOSING CURSOR, WHICH IN A CLOSED CIRCUIT FEEDS A HYDRAULIC MOTOR OR A CYLINDER HID. TO BE ABLE TO CONTROL THE SPEED OF THE TURN OF THE HYDRAULIC MOTOR OR THE SPEED OF MOVEMENT OF THE PISTON OF THE HYDRAULIC CYLINDER SIMPLIFIED IN A SIMPLIFIED MECHANICAL EQUIPMENT, THE ASYNCHRONOUS MOTOR (4) IS CONTROLLED BY A CONVERTER (5)

ES94114975T 1994-01-07 1994-09-22 GOVERNABLE HYDROSTATIC DRIVE, PREFERABLY DRIVE A CRANE. Expired - Lifetime ES2104247T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4400336A DE4400336A1 (en) 1994-01-07 1994-01-07 Controllable hydrostatic drive, preferably crane drive

Publications (1)

Publication Number Publication Date
ES2104247T3 true ES2104247T3 (en) 1997-10-01

Family

ID=6507578

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94114975T Expired - Lifetime ES2104247T3 (en) 1994-01-07 1994-09-22 GOVERNABLE HYDROSTATIC DRIVE, PREFERABLY DRIVE A CRANE.

Country Status (4)

Country Link
EP (1) EP0662574B1 (en)
DE (2) DE4400336A1 (en)
DK (1) DK0662574T3 (en)
ES (1) ES2104247T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9803062L (en) * 1998-09-10 2000-04-04 Svein Elfstroem drive assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5889570A (en) * 1981-11-24 1983-05-27 三菱電機株式会社 Controller for alternating current elevator
CH658154A5 (en) * 1984-08-01 1986-10-15 Cerac Inst Sa CONTROL DEVICE FOR AN ALTERNATING VOLTAGE MOTOR.
AT395273B (en) * 1988-06-13 1992-11-10 Voith Werke DRIVE FOR LIFTS OR THE LIKE.
US5210473A (en) * 1991-11-19 1993-05-11 Harnischfeger Corporation System with delay timer for motor load equalization
DE4138596A1 (en) * 1991-11-23 1993-05-27 Buehne Werner Abus Kg LIFTING WORKING WITH VARIABLE LIFTING SPEED

Also Published As

Publication number Publication date
EP0662574A1 (en) 1995-07-12
DE59403457D1 (en) 1997-08-28
DE4400336A1 (en) 1995-07-13
DK0662574T3 (en) 1998-02-16
EP0662574B1 (en) 1997-07-23

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